This Type of style has a lengthy background at Patek, relationship back again towards the early nineteen sixties Together with the ref. 2597 Travel Time Calatrava. As James Stacey described in his Palms-On with the 5164R in 2019, the movement in the 2597 originated from the brain of Louis Cottier https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/